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- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- Mother and baby interact in a very complex way. 母亲与婴儿以非常复杂的方式相互影响。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- Some of them developed a great inferiority complex. 他们有些人养成了严重的自卑感。
- My grandmother has a complex against foreigners. 我奶奶对外国人抱有偏见。
- Life is getting more complex and difficult. 生活正在变得越来越复杂和艰难。
- He has a complex about his weight. 他过分关心自己的体重。
- Complex, intricate, and involved. 复杂的、错综的和涉及的
- A petrochemical complex is to be built here. 这儿将建造一个石油化学联合企业。
- An airplane engine is a complex mechanism. 飞机引擎是种复杂的机械装置。
- The army is an extremely complex organism. 军队是极其复杂的组织。
- It's a complex question and her answer was too pat. 那问题很复杂，但她的回答简直是脱口而出。
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?
- A car comes into being through a series of complex operations. 汽车经过一连串的复杂作业程序而制成。
- Nitrogen is the most commonly used gas. 氮气是最常用的气体。
- Sample gas tubes are flushed with nitrogen. 采气管得用氮气吹扫。
- The main reservoir of nitrogen is the atmosphere. 氮的主要蓄存库是大气层。
- What is the percentage of nitrogen in air? 空气中所含的氮的比例是多少?
